Method of producing branched polyorganosiloxane.

摘要

A method is provided for producing a branched polyorganosiloxane to use in improving properties of silicone oil fluid. The method eliminates the occurrence of by-products, such as hydrochloric acid, which easily decompose the branched polyorganosiloxane. This method of producing a branched polyorganosiloxane involves reacting a compound which has at least three silanol groups per molecule and which is soluble in an organic solvent with a linear polydiorganosiloxane having a polymerization degree of at least three and having only one chain end terminated with a group containing a nitrogen atom which is bonded to a silicon atom.